Android camerax 拍照到变量

Question

我需要将在android中拍摄的照片保存到一个变量（字符串）中这是我的代码：

    var imageCapture = ImageCapture.Builder().build()
    val captureMode = ImageCapture.CAPTURE_MODE_MAXIMIZE_QUALITY
    val flashMode = ImageCapture.FLASH_MODE_AUTO
    val aspectRatio = AspectRatio.RATIO_16_9
    val metrics = DisplayMetrics().also { previewView.display.getRealMetrics(it) }
    val screenSize = Size(metrics.widthPixels, metrics.heightPixels)

    imageCapture = ImageCapture.Builder()
        .setCaptureMode(captureMode)
        .setTargetAspectRatio(aspectRatio)
        .setFlashMode(flashMode)
        .setTargetResolution(screenSize)
        .setTargetName("CameraConference")
        .build()

imageCapture 有一个名为 takePicture 的方法我不明白如何使用 imageCapture.takePicture 所以它的输出将是一个变量 (string)

谢谢

Answer 1

您可以使用 ImageCapture#takePicture(Executor executor, ImageCapture.OnImageCapturedCallback callback) API to return an in-memory picture. The returned object is an ImageProxy, which include the actual bytes as well as how the bytes should be transformed to present to end users. ImageProxy#getPlanes() 包含缓冲区字节。

要将 ImageProxy 字节转换为位图，请参阅代码示例 here。

Android camerax 拍照到变量

Android camerax take picture into variable

android

android-camerax